Music-leaf turner.



T. S.- GROSE 6: J. W. HAWKINS.

MUSIC LEAF TURNER. AIPLIOATION FILED ran. a, 1909.

Patented July 5, 1910.

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UNITED STATES PATENT OFFICE.

TOWARD SYLVESTER GROSE AND JOHN WESLEY HAWKINS, 0F PHILADELPHIA,PENNSYLVANIA.

MUSIC-LEAF TURNER.

Application filed February 6, 1909.

Specification of Letters Patent.

To all whom it may concern:

Be it known that we, TOWARD S. Gross and JOHN W. I-IAwKINs, bothcitizens of the United States, and residents of Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have invented a newand Improved Music-Leaf Turner, of which the following is a full, clear,and exact deseription.

The purpose of our invention is to provide novel details of constructionfor a leaf turner which is well adapted for successively turning theleaves of a bound book, or loose leaves whereon different pieces ofmusic are imprinted, and thus relieve the player of a piano or the likefrom interruption while executing music on such an instrument.

The invention consists in the novel con struction and combination ofparts, as is hereinafter described and defined in the appended claims.

Reference is to be had ing drawings forming apart of this specication,in which similar characters of reference indicate corresponding parts inall the views.

Figure 1 is a partly sectional front elevation of the improved leafturner; Fig. 2 is a vertical transverse sectional View, substantially onthe line 22 in Fig. 1; Fig. 3 is an enlarged partly sectional plan view,substantially on the line 33 in Fig. 1; Fig. 4 is a vertical transversesectional view; substantially on the line H .in Fig. 5; and Fig. 5 is apartly sectional plan view, sub stantially on the line 55 in Fig. 4.

In the drawings that illustrate the constructive details of theimprovement, 10 represents an elongated base for the support of otherfeatures of the device. The base 10 is rectangular and of suitabledimensions for its service. At the longitudinal center and near the sideof the base piece 10 that is rearward in service, a casing 11 ofsuitable material is erected thereon; said casing having greater widththan depth may be substantially rectangular in cross section, asindicated in Fig. 3. In the casing 11, a plurality of similarcylindrical spring boxes 12 are rotatably supported adjacent to eachother, two of said elongated boxes being shown in position within thecasing by dotted lines in Fig. 1, and in section in Fig. 3. In each ofthe similar boxes 12 that are tubular, two resilient plate springs a, a,are

to the accompanysecured at their ends, the bodies thereof that facetoward each other being essentially flat and parallel with each other,as shown for one box and pair of springs in Fig. 4. Each spring box 12is supported in the casing 11 so as to be freely rotatable, and at thelower end of the casing, the spring boxes project somewhat below it. Anarm 12 is extended laterally in the same direction from the lower end ofeach spring box 12 and affords means for rocking said boxes separatelyor together in either direction.

A preferably metal rod 18 is provided as a vertical extension from eachbox 12, said rods having their lower portions 13 square in crosssection, and thus adapted for insertion down between the springs a, a ina respective box 12, as is indicated for one rod and box in Figs. 4 andUpon the upper end of each rod 13, an arm 14 is jointed, so that saidarms may be rocked, but not too freely, as it is essential that theywill remain where adjusted. On each arm 14, a spring clip 15 is slidablymounted, of such a character as will permit its easy attachment upon theedge of a sheet of music or the leaf of a book.

At a suitable distance from the casing 11, and near the respective endsof the base piece 10, a rock shaft 16 is journalcd in the front and rearwalls of the latter. On the end of each rock shaft 16, that projects atthe front wall of the base piece 10, a lever 17 is mounted at one end,these levers extending toward each other, and on their adjacent endshaving an enlargement 18 for convenient manipulation. On each rock shaft16, a coiled spring 6 is mounted, having one end thereof secured to theshaft and the other end attached to the base piece, and the trend ofsaid coiled springs is such, that they will return the shafts and leversthereon to normal position if the levers are depressedat their free endsand pressure thereon is removed.

On the enlarged end 18 of each lever 17, one end of a flexibleconnection 0 is secured, and thence said connections are extendedthrough an opening in the front wall of the base piece 10 and thenpassed over asupport (Z, from which said flexible connections divergetoward the ends of the arms 12 whereon they are respectively secured, asshown in Figs. 2 and 3.

The complete device that has been described may be seated on a musicrack of usual form, that is in the usual position on a piano or organand which inclines rearward.

A piece of music printed on loose sheets, may be held in position on theimproved leaf turner by engaging the lower edges of the sheets at theircenter fold with an upright spring finger 19, which is secured on thetop wall of the base piece 10. The arms 14,- are now adjusted to aproper height by sliding the squared portions 13 of the rods 13 to aproper elevation in the spring boxes 12, said squared portions havingsuch a relative engagement between the springs a, a as will dispose thearms 14 in contact with the upper edge of the leaf or sheet it is toturn. The clip 15 on a respective arm 14 is now engaged with the leaf orsheet at its upper edge near the center of width, and it will be seenthat by the depression of the free end of an appropriate lever 17, theleaf or sheet engaged therewith will be turned along with the arm 14:,that will be rocked from side to side of the device by the pull of theattached flexible connection 0 on the arm 12 that is to be rocked.

It will be understood that the instrument may be readily attached to anordinary leaf turner or may be substituted therefor and operate withequal certainty.

It is claimed for the improvement that it is extremely simple,practical, convenient in use and can be produced at moderate cost.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent:

1. A leaf turner, comprising a base piece, an upright casing on the basepiece, an upright box rotatable in the casing, springs in the box, a rodhaving parallel sides that are embraced by the springs, an arm extendedlaterally from the upper end of the rod, a spring clip on the arm, arockable lever on the base piece, and means connecting the lever withthe'box adapted for turning said box, rod and arm when the lever isrocked.

2. A leaf turner, comprising a hollow base piece, an upright casingthereon, a plurality of cylindrical boxes rotatable in the casing, eachbox having a laterally extended arm at the lower end thereof, two platesprings positioned oppositely in each box, a rod in each box havingopposite flattened sides embraced by the springs, an arm extendedlaterally from the upper end of each rod, a plurality of levers rockablymounted upon one side of the hollow base piece, and means connectingsaid levers with the arms on the rotatable boxes, which adapt thedepression of the levers to turn the boxes, rods and arms on said rods.

3. A music leaf turner, comprising an elongated rectangular hollow basepiece, an upright casing on the base piece, a plurality of cylindricalboxes journaled at their ends side by side in the casing, two platesprings disposed oppositely and spaced apart parallel with each other ineach box, an arm on the lower end of each box ext-ended laterally andlocated in the base piece, a rod for each box having parallel sides atand near its lower end whereon the springs press, a laterally extendedarm on the upper end of each rod, a spring clip on each rod, a rockshaft journaled in the base piece near each end thereof, a lever on aprojected end of each rock shaft, a coiled spring on each rock shaftadapted for raising a lever thereon when said lever is depressed, and aflexible connection extended between each lever and a respective arm onthe lower end of a corresponding box.

4. In a music leaf turner, a tubular rotatable member, springs in saidmember, a rod provided with means for engaging a leaf, said rodextending into the member and engaged by the springs, whereby it isadjustably held in said member, and means for rotating the member.

5. In a music leaf turner, a hollow base having an opening in its frontwall, a rotatable member mounted on the base and provided with an arm atits lower end, a vertically adjustable arm carried by the rotatablemember and having means for engaging a leaf, a spring pressed rock shaftmounted in the base and having one end projecting through the base, alever on the projecting end of the rock shaft, and a flexible connectionhaving one end secured to the arm on the lower end of the rotatablemember, passed through the opening of the base, and its other endsecured to the said lever.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

TOWARD SYLVESTER GROSE. JOHN WESLEY HAWKINS.

Witnesses:

WALTER Trmo. FAHY, AUGUsTINE C. METZINGER.

